Knee joint for prosthesis



FIG. 1 is a left perspective view of the knee joint for prosthesis;

FIG. 2 is a right side perspective view of the knee joint for prosthesis;

FIG. 3 is a back perspective view of the knee joint for prosthesis;

FIG. 4 is a top perspective view of the knee joint for prosthesis;

FIG. 5 is a bottom perspective view of the knee joint for prosthesis;

FIG. 6 is an isometric view of the knee joint for prosthesis; and,

FIG. 7 is an enlarged view of the joint portion of the knee joint for prosthesis.

The broken line showing of portions of the design is for illustrative purpose only and form no part of the claimed design. 

I claim the ornamental design for a knee joint for prosthesis, as shown and described. 